The Borde Hill Plant Finders Fair aims to offer a "real alternative" to large shows. Confirmed plant exhibitors include nurseries such as Dysons, Hardy’s Cottage Plants and Evolution Plants.
Product exhibitors include Garden and Wood, Peter Dibble basket maker, Home and Garden Ironwork, Green Man Woodcrafts and Sneeboer tools.
The Sussex branch of the charity Plant Heritage will be providing a plant crèche.
TJM director Therese Lang said, "We are absolutely delighted to have found a perfect location to relaunch the much loved Plant Finders Fair model. Borde Hill Garden is a superb location in a beautiful part of the country with wonderful access.
"Visitors can be assured that Borde Hill will exhibit all the panache and excellence they have come to expect from our Plant Finders Fairs. We offer a proven formula that real gardeners enjoy as they’ll have direct access to some of the UK’s finest plant nurseries and a choice of the highest quality and interesting garden products and paraphernalia.Cottesbrooke's fair ended in 2012.